50bps 25bps question - Convert avi to DVD

[MaerchenhafterRabe]

Hi I am very new here and I hope you can help me with my problem:

I use Linux and as a coverter-software for example DEVEDE (ffmpeg).
I convert avi files 50bps to DVD-files 25bps. No problem, no "sliding", no "sticking/stutter" of pictures (even when the camera is moving slowly across the landscape).

But now I have videos in another format and now it does not work. Every bad thing up there happens. The film "stutters". It is terrible. Do you have an idea, why this happens?

Video that works (mediainfo):
Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
Overall bit rate : 2 062 kb/s
Video
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.2
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : H264
Duration : 3 h 55 min
Bit rate : 1 854 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate : 50.000 FPS
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.040


Video that doesn't work to convert to DVD without "sticking":
General
Format : MPEG-TS
Overall bit rate mode : Variable
Overall bit rate : 11.1 Mb/s

Video
ID : 68 (0x44)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=30
Codec ID : 27
Duration : 1 h 46 min
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate : 50.000 FPS
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Color range : Limited
Color primaries : BT.601 NTSC
Transfer characteristics : BT.601
Matrix coefficients : BT.601

Do you have any idea? It would be great!
Greetings
MaerchenhafterRabe

[poisondeathray]

You have to examine the source file frame by frame

For example, a common scenario - it might be "25p" encoded with duplicate frames for "fake" 50p . Or it might be another actual framerate, a conversion from 24p or soemthing else .

Or it might not be decoded correctly by devede, maybe there are errors

If you don't know how to examine it, stream copy a small sample of the problem source file, in a scene with motion, using ffmpeg and upload it here, someone will take a look

[hello_hello]

Sometimes when ffmpeg based source filters are used in Avisynth to change the frame rate they can cause stuttering by duplicating or deleting frames when they shouldn't. It can happen when you specify a frame rate that matches the source frame rate, so maybe it's a similar thing because the frame rate is exactly double. I think it's caused by jitter in the timecodes. Then again, I don't know anything about how the GUI or ffmpeg is choosing the frames to remove.

If it's a similar problem, AVIs seem more suitable to it, so maybe try remuxing a problem AVI as an MKV with MKVToolNixGUI and use the MKV as the source, but as poisondeathray suggested, a sample would be helpful.

[ProWo]

Color primaries : BT.601 NTSC

I think the second video was converted from NTSC Source with 23.976, 29.97,30 or 60FPS